Activity for newbie
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Edit | Post #295180 |
Post edited: |
— | 9 months ago |
| Comment | Post #295180 |
Same circuit. In my yesterdays simulation result I did not considered the parasitics of Inductor. The ripple frequency is 709Hz abt DVDD rail and 652HZ at AVDD rail. This is not a fixed switching frequency converter (more) |
— | 9 months ago |
| Edit | Post #295180 |
Post edited: |
— | 9 months ago |
| Edit | Post #295180 |
Post edited: |
— | 9 months ago |
| Edit | Post #295180 | Initial revision | — | 9 months ago |
| Question | — |
Ripple calculation for Powering ADC This a continuation of my previous question. As Olin suggested, I decided to simulate only Buck-Boost solution for powering my 16 bit ADC. Olin suggested me to add filtering at the output of the Buck-Boost converter. My circuit diagram is given below. Imagealttext Output waveforms and measu... (more) |
— | 9 months ago |
| Comment | Post #295172 |
Initially I thought of using only LTC3531 only. As you suggested I will keep an LC filter at the output of LTC3531. Also I found another IC from TI which has good light load performance. The P/N is TPS63900. Regarding battery cut off , I choose 3V. I got that value from my literature study. Durin... (more) |
— | 9 months ago |
| Edit | Post #295171 | Initial revision | — | 9 months ago |
| Question | — |
Wearable device Battery life calculation Basic Explanation of my System: The proposed design is a battery-powered wearable device that integrates advanced sensing and power management features. The system operates primarily from a single-cell Li-ion battery (3.7 V nominal) and includes a USB Type-C interface for charging and external... (more) |
— | 9 months ago |
| Edit | Post #295109 |
Post edited: |
— | 10 months ago |
| Edit | Post #295109 | Initial revision | — | 10 months ago |
| Question | — |
Powering ADC using Buck Boost Converter Basic Explanation of my System: The proposed design is a battery-powered wearable device that integrates advanced sensing and power management features. The system operates primarily from a single-cell Li-ion battery (3.7 V nominal) and includes a USB Type-C interface for charging and external... (more) |
— | 10 months ago |
| Edit | Post #294953 |
Post edited: |
— | 10 months ago |
| Comment | Post #294953 |
Hi Olin,I added the required details.Could you please help me. (more) |
— | 10 months ago |
| Edit | Post #294953 |
Post edited: Details are added suggested by the moderator.Could you kindly open this question |
— | 10 months ago |
| Edit | Post #294953 | Initial revision | — | 10 months ago |
| Question | — |
Mitigating Reference Voltage Ripple in 12-bit ADCs Powered by Switching Regulators I am using a 12-bit ADC with its reference voltage powered by a switching regulator that introduces approximately 33 mV Peak to Peak ripple on the reference line and ripple frequency is 1.7 Khz. Will calibrating the ADC effectively mitigate the effects of this ripple? Additionally, are there... (more) |
— | 10 months ago |
| Comment | Post #294898 |
I have a demo board built by other team in which the NTC is connected to GND. So I need to keep the capacitor in parallel NTC. May I know can I keep 0.1uF in parallel with NTC. (more) |
— | 11 months ago |
| Edit | Post #294892 | Initial revision | — | 11 months ago |
| Question | — |
NTC configurations I need to interface the NTC thermistor with the SAM D5x/E5x microcontroller. During my research, I came across two common circuit configurations for NTC connections: one where the NTC is connected to VCC, and another where it is connected to GND. Please refer to the image below for reference. ... (more) |
— | 11 months ago |
| Comment | Post #294791 |
Okay I removed that sentence (more) |
— | 11 months ago |
| Edit | Post #294791 |
Post edited: |
— | 11 months ago |
| Comment | Post #294791 |
Same regulator I mean same P/N,To avoid any confusion (more) |
— | 11 months ago |
| Edit | Post #294691 |
Post edited: |
— | 11 months ago |
| Comment | Post #294791 |
I completely corrected this question also.(https://electrical.codidact.com/posts/294691).
I promise that next time onwards I will review couple times before posting.I truly and sincerely apologize; it comes from the very bottom of my heart. (more) |
— | 11 months ago |
| Edit | Post #294691 |
Post edited: |
— | 11 months ago |
| Comment | Post #294791 |
I’m really sorry if my previous edits caused frustration — I truly didn’t mean to come across as careless or disrespectful. I greatly value the time and help you’ve given me. I’m still learning how things work here, and some of the formatting errors were unintentional on my part. I’ll make sure t... (more) |
— | 11 months ago |
| Comment | Post #294791 |
I believe,I fixed all the issues (more) |
— | 11 months ago |
| Edit | Post #294691 |
Post edited: spacing issue is corrected |
— | 11 months ago |
| Edit | Post #294791 |
Post edited: spacing issue is corrected |
— | 11 months ago |
| Edit | Post #294791 |
Post edited: |
— | 11 months ago |
| Edit | Post #294791 |
Post edited: |
— | 11 months ago |
| Comment | Post #294791 |
Sorry for the inconvenience caused.Updated both the questions (more) |
— | 11 months ago |
| Edit | Post #294691 |
Post edited: The question is updated properly to improve the readability |
— | 11 months ago |
| Edit | Post #294791 |
Post edited: Question is updated as per the community requirements |
— | 11 months ago |
| Edit | Post #294791 |
Post edited: The question is updated properly to improve the readability |
— | 11 months ago |
| Edit | Post #294791 | Initial revision | — | 11 months ago |
| Question | — |
Powering a mixed signal board AVDD or DVDD for other IC's other than ADC I have a circuit which reads from an electrochemical sensor IC. The block diagram of the circuit is given below. Imagealttext It contains two voltage regulators for powering the AVDD and DVDD of the ADC. From the electrochemical sensor IC, the output is connected to MUX and from MUX... (more) |
— | 11 months ago |
| Edit | Post #294691 |
Post edited: |
— | 11 months ago |
| Edit | Post #294691 | Initial revision | — | 11 months ago |
| Question | — |
mAs to mAh conversion May I know how to convert mAs to mAh? I have a chip operating at 3.3 V. Its standby current is 0.00085 mA. In one day, the chip is active for only 4.24 s. To calculate the standby energy consumption, my calculation is as follows: (0.00085 mA) × (86400 − 4.24) s = 73.44 mAs To co... (more) |
— | 11 months ago |
| Comment | Post #294643 |
The datasheet says "Output pulse level Equal to supply voltage (positive going) " and "Supply voltage range, VCC 2.5V to 15.0V ".I am planning to power with 3.3V supply.My Microcontroller(CC1352P) is working at 3.3V. (more) |
— | 12 months ago |
| Edit | Post #294643 | Initial revision | — | 12 months ago |
| Question | — |
Interfacing sensor with TTL output with Microcontroller I need to interface a radiation sensor (BG51 by Teviso Sensor Technologies) with TTL output with a CC1352P microcontroller. May I know how to approach this. (more) |
— | 12 months ago |
| Edit | Post #294467 |
Post edited: |
— | about 1 year ago |
| Edit | Post #294467 |
Post edited: |
— | about 1 year ago |
| Edit | Post #294467 | Initial revision | — | about 1 year ago |
| Question | — |
PID Gas sensor interfacing with ADC I am interfacing this gas sensor to the ADC of TI CC1352P. May I know can I directly connect the output of this gas sensor to ADC (I mean after the gas sensor output I will keep an RC circuit with some cut off frequency less than 100Hz) or do I need to place a unity gain buffer before the ADC. ... (more) |
— | about 1 year ago |
| Comment | Post #294432 |
Thank you,I got it .At the output of the gas sensor place a potentiostat and connect the output of the potentiostat to MUX.may I know your thoughts about interrupt driven mechanisam.We will poll the gas sensors at regular intervals of 15mts.In between if any gas sensor crosses the threshold it sh... (more) |
— | about 1 year ago |
| Comment | Post #294430 |
Thank you Andy,We will poll the gas sensors at regualr interval of 15mts.If any gas crosses threshold before that,it should produce an interrupt and wake up the TX and send the data to RX.I am not sure about this interrupt mechanisam will work with my current architecture or not.Also could you k... (more) |
— | about 1 year ago |
- ← Previous
- 1
- 2
- 3
- 4
- Next →